From: Edward Cree <ecree@solarflare.com>
Date: Fri, 27 Jan 2017 15:02:26 +0000 (+0000)
Subject: net: implement netif_cond_dbg macro
X-Git-Tag: v4.14-rc1~1463^2~301^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f617f27653c4d9f5b2aa43d567ac0405df889944;p=platform%2Fkernel%2Flinux-rpi3.git

net: implement netif_cond_dbg macro

For reporting things that may or may not be serious, depending on some
 condition, netif_cond_dbg will check the condition and print the report
 at either dbg (if the condition is true) or the specified level.

Suggested-by: Jon Cooper <jcooper@solarflare.com>
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index d63cacb..9511e5a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -4347,6 +4347,15 @@ do {								\
 })
 #endif
 
+/* if @cond then downgrade to debug, else print at @level */
+#define netif_cond_dbg(priv, type, netdev, cond, level, fmt, args...)     \
+	do {                                                              \
+		if (cond)                                                 \
+			netif_dbg(priv, type, netdev, fmt, ##args);       \
+		else                                                      \
+			netif_ ## level(priv, type, netdev, fmt, ##args); \
+	} while (0)
+
 #if defined(VERBOSE_DEBUG)
 #define netif_vdbg	netif_dbg
 #else